如何从xib选择按钮推送到下一个视图控制器

Question

点击ParcelPickUpViewController xib中的按钮后，我想转到LocationDetailsTableViewCell。但是我已经编写了下面的代码并且能够运行。但结果根本不会发生。需要有关此问题的帮助。谢谢。

在LocationDetailsTableViewCell.h

@property (nonatomic, strong) UINavigationController *viewController;

在LocationDetailsTableViewCell.m

- (IBAction)selectBtn:(id)sender {

    UIStoryboard *mainStoryBoard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
    ParcelPickUpViewController *vc = [mainStoryBoard instantiateViewControllerWithIdentifier: @ "pickUpVC"];
    [self.viewController pushViewController:vc animated: YES];
    [self.viewController setNavigationBarHidden:YES animated:YES];
}

Answer 1

试试这个...

 UIStoryboard *mainStoryBoard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
ParcelPickUpViewController *vc = [mainStoryBoard instantiateViewControllerWithIdentifier: @ "pickUpVC"];
 self.viewController = [[UINavigationController alloc] init];
[self.viewController pushViewController:vc animated: YES];
[self.viewController setNavigationBarHidden:YES animated:YES];

选项2

您创建的导航控制器未分配实例导航控制器的内存，因此请执行

setNavigationBarHidden

如果您不需要 UIStoryboard *mainStoryBoard = [UIStoryboard storyboardWithName:@"Main" bundle:nil]; ParcelPickUpViewController *vc = [mainStoryBoard instantiateViewControllerWithIdentifier: @ "pickUpVC"]; [self presentViewController:vc animated:YES completion:nil]; ，那么请使用

选项3

gpsbabel -i gpx -f blah.gpx -x transform,wpt=trk,del -o gpx -F converted.gpx

Answer 2

我认为您在UITableViewCell中有按钮。现在您想从按钮点击导航到下一个视图。

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{

    static NSString *CellIdentifier = @"CustomCell";
    CustomCell *cell = (CustomCell *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if(cell == nil) {
        NSArray *nibObjects = [[NSBundle mainBundle] loadNibNamed:@"CustomCell" owner:nil options:nil];
        cell = [nibObjects objectAtIndex:0];

    }
    cell.btnSelct.tag = indexPath.row;
    [cell.btnSelct addTarget:self action:@selector(selectBtn:) forControlEvents:UIControlEventTouchUpInside];
    return cell;
} 

- (IBAction)selectBtn:(id)sender
{
    //This is for XIB
    ParcelPickUpViewController *vc = [[ParcelPickUpViewController alloc]initWithNibName:@"pickUpVC" bundle:nil];

   //If you use storyboard
   UIStoryboard *mainStoryBoard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
   ParcelPickUpViewController *vc = [mainStoryBoard instantiateViewControllerWithIdentifier: @"parcelpickup"];

   [self.viewController pushViewController:vc animated: YES];

}

Answer 3

（1）确保在isInitialViewController中设置storyboard（应用启动时要显示的第一个控制器）。

（2）如果您未在UINavigationController中添加storyboard，请将其设为programeticaly，并将其设为rootViewController，并将其设置为InitialViewController in didFinishLaunchingWithOptions app delegate - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after application launch. UIStoryboard *storyboard = storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:Nil]; UIViewController *viewController = [storyboard instantiateViewControllerWithIdentifier:@"Your_First_View_Controller_Identifier"]; UINavigationController *rootNavigationController = [[UINavigationController alloc] initWithRootViewController:viewController]; self.window.rootViewController = rootNavigationController; return YES; } 。

ParcelPickUpViewController

（3）导航到- (IBAction)selectBtn:(id)sender { ParcelPickUpViewController *vc = [self.storyboard instantiateViewControllerWithIdentifier: @ "pickUpVC"]; [self.navigationController pushViewController:vc animated: YES]; } 只需添加以下代码：

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